Re: a problem using boost.Lambda
In article <1186380625.153078.216900@d30g2000prg.googlegroups.com>,
"xuminggang@gmail.com" <xuminggang@gmail.com> wrote:
I want to use an int container && an double container to construct a
Foo type container, so I used the following code, but it doesn't
compile. What's the problem with my code?besides, I'm new to
boost.Lambda but I really like boost.
struct Foo
{
Foo(int i, double d)
{
}
};
int _tmain(int argc, _TCHAR* argv[])
{
using namespace boost::lambda;
std::vector<int> int_vec;
int_vec.push_back(1);
int_vec.push_back(2);
std::vector<double> db_vec;
db_vec.push_back(1.2);
db_vec.push_back(2.3);
std::vector<Foo> foo_vec;
std::transform(int_vec.begin(), int_vec.end(), db_vec.begin(),
std::back_inserter(foo_vec), Foo(_1, _2));
return 0;
}
Constructors have to be treated special. Look in the docs under
"Construction and destruction".
Try this instead:
std::transform(int_vec.begin(), int_vec.end(),
db_vec.begin(),
std::back_inserter(foo_vec),
bind(constructor<Foo>(), _1, _2));
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